It shows that your boyfriend is still young psychologically, a little literary and artistic, and has a little admiration for fictional heroes, which shows that his life is not as ideal as his. He longs for a hero, but his heart is weak, and he hopes to have a hero to rely on. There's a fine line between literature and idiots.
Some people around your boyfriend may benefit from some cleverness, that is, bitches. He thinks such a person is hateful, but he is a little envious, but he is too thin-skinned to do anything cheap, but he is eager, so he may be cheap when no one is around.
In a word, he is weak now, and he dare not cheat at all. Don't worry.